Vitamin D Poisoning in Dogs

Although vitamin D is an important fat-soluble vitamin that is essential in regulating calcium and phosphorous balance in a dog's body as well as promotes retention of calcium, thus aiding bone formation and nerve and muscle control, its excessive intake can lead to a condition known as vitamin D toxicity or vitamin D poisoning. 

Puppies and young dogs are more prone to this condition although it can occur in dog of any age, size and breed.

Common symptoms of vitamin D toxicity are 




Loss of appetite

Increased thirst (polydipsia)

Increased urination (polyuria)

Dark tarry feces containing blood

Blood in vomit

Loss of weight



Muscle tremors

Abdominal pain

Excessive drooling

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